Reply by PRGDesigns

Have you thought about an even coarser grit just to get it flat? I know the Supermax guy recommended the coarser grits, i.e. 36 grit or 50 grit, on some of the oilier woods. 80 grit burns PH with my drum sander and I am heading to the coarser grits to see if it helps. I dimensioned some end grain cutting boards recently, although none of them had PH in them, with both 36 grit and 80 grit. While the 36 grit showed slight burning on the actual wood, the sandpaper itself did not have any of the tell tale signs of burning like I experienced with 80 grit on the same type cutting boards. I was also able to increase productivity with the coarser grits by being able to stand on both feet and I could hold my mouth any way I wanted to. Just a thought.